.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     - name: setup
       uses: actions/setup-go@v3
       with:
-        go-version: 1.21
+        go-version: 1.17
     - name: checkout
       uses: actions/checkout@v3
     - name: cache

.github/workflows/pr.yml

@@ -12,7 +12,7 @@ jobs:
     - name: setup
       uses: actions/setup-go@v3
       with:
-        go-version: 1.20
+        go-version: 1.17
     - name: checkout
       uses: actions/checkout@v3
     - name: cache

go.mod

@@ -4,7 +4,11 @@ go 1.20
 
 require (
 	github.com/opentracing/opentracing-go v1.2.0
-	go.unistack.org/micro/v4 v4.0.13
+	go.unistack.org/micro/v4 v4.0.1
 )
 
-require github.com/stretchr/testify v1.8.3 // indirect
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/stretchr/testify v1.5.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)

go.sum

@@ -1,13 +1,17 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+1B0VhjKrZUs=
 github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
-github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-go.unistack.org/micro/v4 v4.0.13 h1:wyprk+KNAv/zR6bri6p6ucmXcJ9WyZ/vzru4zjPd8dA=
-go.unistack.org/micro/v4 v4.0.13/go.mod h1:ZDgU9931vm2l7X6RN/6UuwRIVp24GRdmQ7dKmegArk4=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+go.unistack.org/micro/v4 v4.0.1 h1:xo1IxbVfgh8i0eY0VeYa3cbb13u5n/Mxnp3FOgWD4Jo=
+go.unistack.org/micro/v4 v4.0.1/go.mod h1:p/J5UcSJjfHsWGT31uKoghQ5rUQZzQJBAFy+Z4+ZVMs=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

opentracing.go

@@ -3,40 +3,31 @@ package opentracing
 import (
 	"context"
 	"errors"
-	"fmt"
 
-	ot "github.com/opentracing/opentracing-go"
-	otlog "github.com/opentracing/opentracing-go/log"
+	"github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go/log"
 	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/options"
 	"go.unistack.org/micro/v4/tracer"
-	rutil "go.unistack.org/micro/v4/util/reflect"
 )
 
 var _ tracer.Tracer = &otTracer{}
 
 type otTracer struct {
 	opts   tracer.Options
-	tracer ot.Tracer
+	tracer opentracing.Tracer
 }
 
-func (t *otTracer) Name() string {
-	return t.opts.Name
+func (ot *otTracer) Name() string {
+	return ot.opts.Name
 }
 
-func (t *otTracer) Flush(ctx context.Context) error {
-	return nil
-}
-
-func (t *otTracer) Init(opts ...options.Option) error {
+func (ot *otTracer) Init(opts ...tracer.Option) error {
 	for _, o := range opts {
-		if err := o(&t.opts); err != nil {
-			return err
-		}
+		o(&ot.opts)
 	}
 
-	if tr, ok := t.opts.Context.Value(tracerKey{}).(ot.Tracer); ok {
-		t.tracer = tr
+	if tr, ok := ot.opts.Context.Value(tracerKey{}).(opentracing.Tracer); ok {
+		ot.tracer = tr
 	} else {
 		return errors.New("Tracer option missing")
 	}
@@ -44,69 +35,32 @@ func (t *otTracer) Init(opts ...options.Option) error {
 	return nil
 }
 
-type spanContext interface {
-	TraceID() idStringer
-	SpanID() idStringer
-}
-
-func (t *otTracer) Start(ctx context.Context, name string, opts ...options.Option) (context.Context, tracer.Span) {
+func (ot *otTracer) Start(ctx context.Context, name string, opts ...tracer.SpanOption) (context.Context, tracer.Span) {
 	options := tracer.NewSpanOptions(opts...)
-	var span ot.Span
+	var span opentracing.Span
 	switch options.Kind {
-	case tracer.SpanKindUnspecified:
-		ctx, span = t.startSpanFromAny(ctx, name)
-	case tracer.SpanKindInternal:
-		ctx, span = t.startSpanFromContext(ctx, name)
+	case tracer.SpanKindInternal, tracer.SpanKindUnspecified:
+		ctx, span = ot.startSpanFromContext(ctx, name)
 	case tracer.SpanKindClient, tracer.SpanKindProducer:
-		ctx, span = t.startSpanFromOutgoingContext(ctx, name)
+		ctx, span = ot.startSpanFromOutgoingContext(ctx, name)
 	case tracer.SpanKindServer, tracer.SpanKindConsumer:
-		ctx, span = t.startSpanFromIncomingContext(ctx, name)
+		ctx, span = ot.startSpanFromIncomingContext(ctx, ot.tracer, name)
 	}
-
-	sp := &otSpan{span: span, opts: options}
-
-	spctx := span.Context()
-	if v, ok := spctx.(spanContext); ok {
-		sp.traceID = v.TraceID().String()
-		sp.spanID = v.SpanID().String()
-	} else {
-		if val, err := rutil.StructFieldByName(spctx, "TraceID"); err == nil {
-			sp.traceID = fmt.Sprintf("%v", val)
-		}
-		if val, err := rutil.StructFieldByName(spctx, "SpanID"); err == nil {
-			sp.spanID = fmt.Sprintf("%v", val)
-		}
-	}
-
-	return tracer.NewSpanContext(ctx, sp), sp
-}
-
-type idStringer struct {
-	s string
-}
-
-func (s idStringer) String() string {
-	return s.s
+	return ctx, &otSpan{span: span, opts: options}
 }
 
 type otSpan struct {
-	span      ot.Span
-	spanID    string
-	traceID   string
+	span      opentracing.Span
 	opts      tracer.SpanOptions
 	status    tracer.SpanStatus
 	statusMsg string
 }
 
-func (os *otSpan) TraceID() string {
-	return os.traceID
-}
-
-func (os *otSpan) SpanID() string {
-	return os.spanID
-}
-
 func (os *otSpan) SetStatus(st tracer.SpanStatus, msg string) {
+	switch st {
+	case tracer.SpanStatusError:
+		os.span.SetTag("error", true)
+	}
 	os.status = st
 	os.statusMsg = msg
 }
@@ -119,54 +73,19 @@ func (os *otSpan) Tracer() tracer.Tracer {
 	return &otTracer{tracer: os.span.Tracer()}
 }
 
-func (os *otSpan) AddLogs(kv ...interface{}) {
-	os.span.LogKV(kv...)
-}
-
-func (os *otSpan) Finish(opts ...options.Option) {
-	if len(os.opts.Labels)%2 != 0 {
-		os.opts.Labels = os.opts.Labels[:len(os.opts.Labels)-1]
+func (os *otSpan) Finish(opts ...tracer.SpanOption) {
+	if len(os.opts.Labels) > 0 {
+		os.span.LogKV(os.opts.Labels...)
 	}
-	os.opts.Labels = tracer.UniqLabels(os.opts.Labels)
-	for idx := 0; idx < len(os.opts.Labels); idx += 2 {
-		k, ok := os.opts.Labels[idx].(string)
-		if !ok {
-			continue
-		}
-		v, ok := os.opts.Labels[idx+1].(string)
-		if !ok {
-			v = fmt.Sprintf("%v", os.opts.Labels[idx+1])
-		}
-		switch k {
-		case "err":
-			os.status = tracer.SpanStatusError
-			os.statusMsg = v
-		case "error":
-			continue
-		case "X-Request-Id", "x-request-id":
-			os.span.SetTag("x-request-id", v)
-		case "rpc.call", "rpc.call_type", "rpc.flavor", "rpc.service", "rpc.method",
-			"sdk.database", "db.statement", "db.args", "db.query", "db.method",
-			"messaging.destination.name", "messaging.source.name", "messaging.operation":
-			os.span.SetTag(k, v)
-		default:
-			os.span.LogKV(k, v)
-		}
-	}
-	if os.status == tracer.SpanStatusError {
-		os.span.SetTag("error", true)
-		os.span.LogKV("error", os.statusMsg)
-	}
-	os.span.SetTag("span.kind", os.opts.Kind)
 	os.span.Finish()
 }
 
-func (os *otSpan) AddEvent(name string, opts ...options.Option) {
-	os.span.LogFields(otlog.Event(name))
+func (os *otSpan) AddEvent(name string, opts ...tracer.EventOption) {
+	os.span.LogFields(log.Event(name))
 }
 
 func (os *otSpan) Context() context.Context {
-	return ot.ContextWithSpan(context.Background(), os.span)
+	return opentracing.ContextWithSpan(context.Background(), os.span)
 }
 
 func (os *otSpan) SetName(name string) {
@@ -185,142 +104,80 @@ func (os *otSpan) AddLabels(labels ...interface{}) {
 	os.opts.Labels = append(os.opts.Labels, labels...)
 }
 
-func NewTracer(opts ...options.Option) *otTracer {
+func NewTracer(opts ...tracer.Option) *otTracer {
 	options := tracer.NewOptions(opts...)
 	return &otTracer{opts: options}
 }
 
-func (t *otTracer) startSpanFromAny(ctx context.Context, name string, opts ...ot.StartSpanOption) (context.Context, ot.Span) {
-	if tracerSpan, ok := tracer.SpanFromContext(ctx); ok && tracerSpan != nil {
-		return t.startSpanFromContext(ctx, name, opts...)
-	}
-
-	if otSpan := ot.SpanFromContext(ctx); otSpan != nil {
-		return t.startSpanFromContext(ctx, name, opts...)
-	}
-
-	if md, ok := metadata.FromIncomingContext(ctx); ok && md != nil {
-		return t.startSpanFromIncomingContext(ctx, name, opts...)
-	}
-
-	if md, ok := metadata.FromOutgoingContext(ctx); ok && md != nil {
-		return t.startSpanFromOutgoingContext(ctx, name, opts...)
-	}
-
-	return t.startSpanFromContext(ctx, name, opts...)
+func spanFromContext(ctx context.Context) opentracing.Span {
+	return opentracing.SpanFromContext(ctx)
 }
 
-func (t *otTracer) startSpanFromContext(ctx context.Context, name string, opts ...ot.StartSpanOption) (context.Context, ot.Span) {
-	var parentSpan ot.Span
-	if tracerSpan, ok := tracer.SpanFromContext(ctx); ok && tracerSpan != nil {
-		if sp, ok := tracerSpan.(*otSpan); ok {
-			parentSpan = sp.span
-		}
-	}
-	if parentSpan == nil {
-		if otSpan := ot.SpanFromContext(ctx); otSpan != nil {
-			parentSpan = otSpan
-		}
-	}
-
-	if parentSpan != nil {
-		opts = append(opts, ot.ChildOf(parentSpan.Context()))
+func (ot *otTracer) startSpanFromContext(ctx context.Context, name string, opts ...opentracing.StartSpanOption) (context.Context, opentracing.Span) {
+	if parentSpan := opentracing.SpanFromContext(ctx); parentSpan != nil {
+		opts = append(opts, opentracing.ChildOf(parentSpan.Context()))
 	}
 
 	md := metadata.New(1)
 
-	sp := t.tracer.StartSpan(name, opts...)
-	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(md)); err != nil {
+	sp := ot.tracer.StartSpan(name, opts...)
+	if err := sp.Tracer().Inject(sp.Context(), opentracing.TextMap, opentracing.TextMapCarrier(md)); err != nil {
 		return nil, nil
 	}
 
-	ctx = ot.ContextWithSpan(ctx, sp)
+	ctx = opentracing.ContextWithSpan(ctx, sp)
 
 	return ctx, sp
 }
 
-func (t *otTracer) startSpanFromOutgoingContext(ctx context.Context, name string, opts ...ot.StartSpanOption) (context.Context, ot.Span) {
-	var parentSpan ot.Span
-	if tracerSpan, ok := tracer.SpanFromContext(ctx); ok && tracerSpan != nil {
-		if sp, ok := tracerSpan.(*otSpan); ok {
-			parentSpan = sp.span
-		}
-	}
-	if parentSpan == nil {
-		if otSpan := ot.SpanFromContext(ctx); otSpan != nil {
-			parentSpan = otSpan
-		}
-	}
+func (ot *otTracer) startSpanFromOutgoingContext(ctx context.Context, name string, opts ...opentracing.StartSpanOption) (context.Context, opentracing.Span) {
+	var parentCtx opentracing.SpanContext
 
 	md, ok := metadata.FromOutgoingContext(ctx)
-
-	if parentSpan != nil {
-		opts = append(opts, ot.ChildOf(parentSpan.Context()))
-	} else {
-		var parentCtx ot.SpanContext
-
 	if ok && md != nil {
-			if spanCtx, err := t.tracer.Extract(ot.TextMap, ot.TextMapCarrier(md)); err == nil && ok {
+		if spanCtx, err := ot.tracer.Extract(opentracing.TextMap, opentracing.TextMapCarrier(md)); err == nil && ok {
 			parentCtx = spanCtx
 		}
 	}
 
 	if parentCtx != nil {
-			opts = append(opts, ot.ChildOf(parentCtx))
-		}
+		opts = append(opts, opentracing.ChildOf(parentCtx))
 	}
 
 	nmd := metadata.Copy(md)
 
-	sp := t.tracer.StartSpan(name, opts...)
-	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(nmd)); err != nil {
+	sp := ot.tracer.StartSpan(name, opts...)
+	if err := sp.Tracer().Inject(sp.Context(), opentracing.TextMap, opentracing.TextMapCarrier(nmd)); err != nil {
 		return nil, nil
 	}
 
-	ctx = metadata.NewOutgoingContext(ot.ContextWithSpan(ctx, sp), nmd)
+	ctx = metadata.NewOutgoingContext(opentracing.ContextWithSpan(ctx, sp), nmd)
 
 	return ctx, sp
 }
 
-func (t *otTracer) startSpanFromIncomingContext(ctx context.Context, name string, opts ...ot.StartSpanOption) (context.Context, ot.Span) {
-	var parentSpan ot.Span
-	if tracerSpan, ok := tracer.SpanFromContext(ctx); ok && tracerSpan != nil {
-		if sp, ok := tracerSpan.(*otSpan); ok {
-			parentSpan = sp.span
-		}
-	}
-	if parentSpan == nil {
-		if otSpan := ot.SpanFromContext(ctx); otSpan != nil {
-			parentSpan = otSpan
-		}
-	}
+func (ot *otTracer) startSpanFromIncomingContext(ctx context.Context, tracer opentracing.Tracer, name string, opts ...opentracing.StartSpanOption) (context.Context, opentracing.Span) {
+	var parentCtx opentracing.SpanContext
 
 	md, ok := metadata.FromIncomingContext(ctx)
-
-	if parentSpan != nil {
-		opts = append(opts, ot.ChildOf(parentSpan.Context()))
-	} else {
-		var parentCtx ot.SpanContext
-
 	if ok && md != nil {
-			if spanCtx, err := t.tracer.Extract(ot.TextMap, ot.TextMapCarrier(md)); err == nil {
+		if spanCtx, err := tracer.Extract(opentracing.TextMap, opentracing.TextMapCarrier(md)); err == nil {
 			parentCtx = spanCtx
 		}
 	}
 
 	if parentCtx != nil {
-			opts = append(opts, ot.ChildOf(parentCtx))
-		}
+		opts = append(opts, opentracing.ChildOf(parentCtx))
 	}
 
 	nmd := metadata.Copy(md)
 
-	sp := t.tracer.StartSpan(name, opts...)
-	if err := sp.Tracer().Inject(sp.Context(), ot.TextMap, ot.TextMapCarrier(nmd)); err != nil {
+	sp := tracer.StartSpan(name, opts...)
+	if err := sp.Tracer().Inject(sp.Context(), opentracing.TextMap, opentracing.TextMapCarrier(nmd)); err != nil {
 		return nil, nil
 	}
 
-	ctx = metadata.NewIncomingContext(ot.ContextWithSpan(ctx, sp), nmd)
+	ctx = metadata.NewIncomingContext(opentracing.ContextWithSpan(ctx, sp), nmd)
 
 	return ctx, sp
 }

opentracing_test.go

@@ -2,31 +2,47 @@ package opentracing
 
 import (
 	"context"
+	"sync"
 	"testing"
 
-	"github.com/opentracing/opentracing-go/mocktracer"
+	opentracing "github.com/opentracing/opentracing-go"
 	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/tracer"
 )
 
-func TestTraceID(t *testing.T) {
-	md := metadata.New(1)
+func TestStartSpanFromIncomingContext(t *testing.T) {
+	md := metadata.New(2)
+	md.Set("key", "val")
+
+	var g sync.WaitGroup
+
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 	ctx = metadata.NewIncomingContext(ctx, md)
 
-	tr := NewTracer(Tracer(mocktracer.New()))
-	if err := tr.Init(); err != nil {
+	tracer := opentracing.GlobalTracer()
+	ot := &otTracer{tracer: tracer}
+
+	g.Add(8000)
+	cherr := make(chan error)
+	for i := 0; i < 8000; i++ {
+		go func() {
+			defer g.Done()
+			_, sp := ot.startSpanFromIncomingContext(ctx, tracer, "test")
+			sp.Finish()
+		}()
+	}
+
+	for {
+		select {
+		default:
+			g.Wait()
+			close(cherr)
+		case err, ok := <-cherr:
+			if err != nil {
 				t.Fatal(err)
+			} else if !ok {
+				return
 			}
-
-	var sp tracer.Span
-
-	ctx, sp = tr.Start(ctx, "test")
-	if v := sp.TraceID(); v != "43" {
-		t.Fatalf("invalid span trace id %#+v", v)
 		}
-	if v := sp.SpanID(); v != "44" {
-		t.Fatalf("invalid span span id %#+v", v)
 	}
 }

options.go

@@ -2,11 +2,11 @@ package opentracing
 
 import (
 	"github.com/opentracing/opentracing-go"
-	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v4/tracer"
 )
 
 type tracerKey struct{}
 
-func Tracer(ot opentracing.Tracer) options.Option {
-	return options.ContextOption(tracerKey{}, ot)
+func Tracer(ot opentracing.Tracer) tracer.Option {
+	return tracer.SetOption(tracerKey{}, ot)
 }